If you’re looking for DC gear for the tower, I have a bunch of sentinel ups shelves with rectifiers we’re going to offload from an acquisition. Hit me up off-list and we can discuss.
> On Jul 1, 2021, at 16:50, Mark Frost <[email protected]> wrote: > > Does anyone know what they consider 'affordable'? :) > > I recall looking at their gear a while back. Seemed nice, but came with a > hefty price tag. > > Cheers, > Mark > > -----Original Message----- > From: AF <[email protected]> On Behalf Of SmarterBroadband > Sent: Friday, 2 July 2021 06:42 > To: 'AnimalFarm Microwave Users Group' <[email protected]> > Subject: Re: [AFMUG] Tower UPS's (again) > > https://www.ict-power.com/wp-content/uploads/2020/02/Affordable-DC-Power-for > -Wireless-Broadband-Networks_JAN-2020.pdf > > > -----Original Message----- > From: AF [mailto:[email protected]] On Behalf Of Nate Burke > Sent: Monday, June 28, 2021 9:58 AM > To: Animal Farm <[email protected]> > Subject: [AFMUG] Tower UPS's (again) > > We've been using the APC SmartUPS 750XL as a Tower UPS for several years. > Put 2-8 100+AH AGM Batteries on them, and they've been rock solid for us. I > can think of only a handful of failures in the dozens deployed over the last > several years. I used to source them off ebay for $50-$70 each, but they're > becoming more and more scarce. Anybody have a recommendation for a simple > UPS that will do all the monitoring that the APC does and accept big > batteries? > > We're a Metro-Rural Area, our power outages are usually measured in Hours, > not days. So I'm not as concerned with the inefficiency of doing the > DC/AC/DC Conversion for Runtime, just power stability during > outages/fluctuations. I like the ease of connecting the external > batteries to the APC, since the XL line has an Anderson plug on the back for > them, and has a larger charger than the normal UPS, so recharge times are > very quick. > > When the boss goes to the WISPA Shows, his head is filled with all kids of > ideas, so he want's me to investigate doing everything as a DC Plant, When I > price that out, with chargers, voltage converters (24/48), inverters, fuse > protection, LVD, Monitoring, etc, it always seems like the price is a couple > hundred dollars of parts and it would be cobbled together. > > Am I missing something with doing a DC Plant? I see the telco's at the sites > using a rackmount rectifier with power supply modules, but those are a > several hundred by themselves, and they are only 48V, they don't have to > worry about 24v radios. When I build a site now, I drop in 2 batteries, and > the APC, and the site is up and running in a couple minutes. A DIN rail with > a couple power supplies and the box is done, and has fully monitored power, > and I can plug in whatever I want without any equipment modifications. > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
